Summary of Significant Accounting Policies (Tables)

12 Months Ended

Sep. 30, 2018

Accounting Policies [Abstract]

Schedule of Calculation of Numerator and Denominator in Earnings Per Share

The following table is a reconciliation of the numerators and denominators in the net income per common share calculations (in thousands, except per common share data):

	Fiscal years ended September 30,
	2018		2017		2016
Numerator:
Income from continuing operations	$	1,303	$	9,366	$	13,478
Income from discontinued operations, after income taxes	$	—	$	—	$	3,230
Net income	$	1,303	$	9,366	$	16,708
Denominator:
Denominator for basic net income per common share — weighted average shares outstanding	27,083		26,432		25,760
Effect of dilutive securities:
Stock options and restricted stock units	569		667		551
Denominator for diluted net income per common share — adjusted weighted average shares	27,652		27,099		26,311
Basic net income per common share:
Continuing operations	$	0.05	$	0.35	$	0.52
Discontinued operations	$	—	$	—	$	0.13
Net income	$	0.05	$	0.35	$	0.65
Diluted net income per common share:
Continuing operations	$	0.05	$	0.35	$	0.51
Discontinued operations	$	—	$	—	$	0.12
Net income (1)	$	0.05	$	0.35	$	0.64

(1) Earnings per share presented are calculated by line item and may not add due to the use of rounded amounts.

Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]

The adoption of the standard related to the new revenue recognition is expected to impact our reported results as follows:

	Fiscal year ended September 30, 2018
(in thousands, except per common share data)	As Reported		Impact of Adoption			As Adjusted
Revenue:
Hardware product	$	191,050	$	—		$	191,050
Services and solutions	37,316		(1,473		)	35,843
Total revenue	228,366		(1,473		)	226,893
Cost of sales:
Cost of hardware product	96,332		—			96,332
Cost of services and solutions	20,280		(1,644		)	18,636
Amortization	2,871		—			2,871
Total cost of sales	119,483		(1,644		)	117,839
Gross profit	108,883		171			109,054
Operating expenses	106,561		(289		)	106,272
Operating income	2,322		460			2,782
Net income	$	1,303	$	328		$	1,631
Diluted earnings per share	$	0.05	$	0.01		$	0.06

	Fiscal year ended September 30, 2017
(in thousands, except per common share data)	As Reported		Impact of Adoption			As Adjusted
Revenue:
Hardware product	$	166,480	—			$	166,480
Services and solutions	15,154		(294		)	14,860
Total revenue	181,634		(294		)	181,340
Cost of sales:
Cost of hardware product	85,369		—			85,369
Cost of services and solutions	7,647		(353		)	7,294
Amortization	1,444		—			1,444
Total cost of sales	94,460		(353		)	94,107
Gross profit	87,174		59			87,233
Operating expenses	78,367		—			78,367
Operating income	8,807		59			8,866
Net income	$	9,366	37			$	9,403
Diluted earnings per share	$	0.35	$	—		$	0.35

1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

	September 30, 2018
(in thousands)	As Reported		Impact of Adoption			As Adjusted
Accounts receivable, net	$	50,817	$	(998	)	$	49,819
Other current assets	$	2,613	$	885		$	3,498
Deferred tax assets	$	6,665	$	(65	)	$	6,600
Other non-current assets	$	1,291	$	1,199		$	2,490
Other current liabilities	$	2,413	$	598		$	3,011
Other non-current liabilities	$	510	$	210		$	720
Stockholders' equity	$	330,280	$	213		$	330,493

	September 30, 2017
(in thousands)	As Reported		Impact of Adoption			As Adjusted
Other current assets	$	3,032	$	172		$	3,204
Deferred tax assets	$	9,211	$	67		$	9,278
Other non-current assets	$	269	$	268		$	537
Other current liabilities	$	2,113	$	469		$	2,582
Other non-current liabilities	$	654	$	153		$	807
Stockholders' equity	$	319,144	$	(115	)	$	319,029